Contact terminal, inspection jig, and inspection device

Abstract

A contact terminal includes a tubular body extending in an axial direction parallel to a central axis of the contact terminal and a bar-shaped conductor having conductivity. The conductor includes a protrusion protruding toward one side in the axial direction from the tubular body, and an insertion portion disposed inside from an outer periphery of the tubular body. The tubular body includes an end side notch provided along the axial direction on a peripheral surface of the one end portion in the axial direction of the tubular body, and a first circumferential notch connected to another side in the axial direction of the end side notch and provided along a circumferential direction away from the end side notch with respect to a first end portion in a circumferential direction of the end side notch.

What is claimed is: 
     
       1. A contact terminal, comprising:
 a tubular body extending in an axial direction parallel to a central axis of the contact terminal; and 
 a bar-shaped conductor having conductivity, 
 wherein the conductor includes a protrusion protruding toward one side in the axial direction from the tubular body, and an insertion portion disposed inside from an outer periphery of the tubular body, 
 the tubular body includes: 
 a first end side notch provided along the axial direction on a peripheral surface of the one end portion in the axial direction of the tubular body; and 
 a first circumferential notch connected to another side in the axial direction of the first end side notch and provided along a circumferential direction away from the first end side notch with respect to a first end portion in a circumferential direction of the first end side notch, 
 the insertion portion includes a first inclined portion and a first wall surface portion disposed on one side in the axial direction of the first inclined portion, 
 the first inclined portion has an inclined surface farther from the central axis toward one side in the axial direction as viewed in a direction perpendicular to the axial direction, and 
 the first wall surface portion is contactable with the tubular body. 
 
     
     
       2. The contact terminal according to  claim 1 , wherein a cross section of the insertion portion at a position in the axial direction where a width of the insertion portion is maximum has a portion overlapping the tubular body as viewed in the axial direction. 
     
     
       3. The contact terminal according to  claim 1 , wherein the first wall surface portion extends perpendicular to the axial direction when viewed from a direction perpendicular to the axial direction. 
     
     
       4. The contact terminal according to  claim 1 , wherein the first wall surface portion approaches the central axis toward one side in the axial direction as viewed from a direction perpendicular to the axial direction. 
     
     
       5. The contact terminal according to  claim 1 , wherein the first wall surface portion is separated from the central axis toward one side in the axial direction as viewed from a direction perpendicular to the axial direction. 
     
     
       6. The contact terminal according to  claim 1 , wherein the protrusion has a flange facing, in the axial direction, one end surface in the axial direction of the tubular body. 
     
     
       7. The contact terminal according to  claim 1 , wherein the insertion portion includes an end side rib disposed between circumferential end surfaces of the first end side notch. 
     
     
       8. The contact terminal according to  claim 1 , wherein
 the insertion portion includes a center side rib disposed in the first inclined portion on another side in the axial direction, and 
 the center side rib includes a guide portion having a width substantially equal to a width between circumferential end surfaces of the first end side notch. 
 
     
     
       9. The contact terminal according to  claim 8 , wherein the center side rib includes a second inclined portion connected to another side in the axial direction of the guide portion and having an inclined surface approaching the central axis toward another side in the axial direction as viewed in a direction perpendicular to the axial direction. 
     
     
       10. The contact terminal according to  claim 8 , wherein
 the tubular body has a center side notch provided along the axial direction on a peripheral surface of the tubular body, and 
 the center side rib is disposed between circumferential end surfaces of the center side notch. 
 
     
     
       11. The contact terminal according to  claim 1 , wherein the tubular body has a second circumferential notch provided along a circumferential direction away from the first end side notch from a second end portion in a circumferential direction of the first end side notch. 
     
     
       12. The contact terminal according to  claim 1 , wherein the tubular body has a second end side notch provided along the axial direction on a peripheral surface of one end portion in the axial direction of the tubular body. 
     
     
       13. The contact terminal according to  claim 12 , wherein the second end side notch is disposed at an opposing position shifted by 180° around the central axis from a circumferential central position of the first end side notch. 
     
     
       14. The contact terminal according to  claim 13 , wherein the opposing position is a circumferential center position of the second end side notch. 
     
     
       15. The contact terminal according to  claim 12 , wherein the second end side notch is located on one side in the axial direction with respect to another end portion in the axial direction of the first circumferential notch. 
     
     
       16. The contact terminal according to  claim 12 , wherein
 the tubular body includes a third circumferential notch connected to another side in the axial direction of the second end side notch and provided along a circumferential direction away from the second end side notch from a first end portion in a circumferential direction of the second end side notch, 
 the insertion portion includes a third inclined portion and a second wall surface portion disposed on one side in the axial direction of the third inclined portion, 
 the third inclined portion has an inclined surface farther from the central axis toward one side in the axial direction as viewed in a direction perpendicular to the axial direction, and 
 the second wall surface portion is contactable with the third circumferential notch. 
 
     
     
       17. An inspection jig comprising:
 a plurality of the contact terminals, each contact terminal comprising:
 a tubular body extending in an axial direction parallel to a central axis of the contact terminal; and 
 a bar-shaped conductor having conductivity, 
 wherein the conductor includes a protrusion protruding toward one side in the axial direction from the tubular body, and an insertion portion disposed inside from an outer periphery of the tubular body, the tubular body includes: 
 a first end side notch provided along the axial direction on a peripheral surface of the one end portion in the axial direction of the tubular body; and 
 a first circumferential notch connected to another side in the axial direction of the first end side notch and provided along a circumferential direction away from the first end side notch with respect to a first end portion in a circumferential direction of the first end side notch, 
 the insertion portion includes a first inclined portion and a first wall surface portion disposed on one side in the axial direction of the first inclined portion, 
 the first inclined portion has an inclined surface farther from the central axis toward one side in the axial direction as viewed in a direction perpendicular to the axial direction, and 
 the first wall surface portion is contactable with the tubular body, 
 wherein upon insertion of the first insertion portion into the tubular body, the first wall surface portion is configured to reside within the first circumferential notch to allow contact with the tubular body; and 
 a support member that supports the plurality of the contact terminals. 
 
 
     
     
       18. An inspection device comprising:
 an inspection jig comprising: and 
 a plurality of the contact terminals, each contact terminal comprising:
 a tubular body extending in an axial direction parallel to a central axis of the contact terminal; and 
 a bar-shaped conductor having conductivity, 
 wherein the conductor includes a protrusion protruding toward one side in the axial direction from the tubular body, and an insertion portion disposed inside from an outer periphery of the tubular body, the tubular body includes: 
 a first end side notch provided along the axial direction on a peripheral surface of the one end portion in the axial direction of the tubular body; and 
 a first circumferential notch connected to another side in the axial direction of the first end side notch and provided along a circumferential direction away from the first end side notch with respect to a first end portion in a circumferential direction of the first end side notch, 
 the insertion portion includes a first inclined portion and a first wall surface portion disposed on one side in the axial direction of the first inclined portion, 
 the first inclined portion has an inclined surface farther from the central axis toward one side in the axial direction as viewed in a direction perpendicular to the axial direction, and 
 the first wall surface portion is contactable with the tubular body, 
 
 wherein upon insertion of the first insertion portion into the tubular body, the first wall surface portion is configured to reside within the first circumferential notch to allow contact with the tubular body; 
 a support member that supports the plurality of the contact terminals; and 
 an inspection processing unit that performs an inspection of an inspection target on a basis of an electrical signal obtained by bringing the contact terminal into contact with an inspection point provided on the inspection target. 
 
     
     
       19. The contact terminal according to  claim 2 , wherein the first wall surface portion extends perpendicular to the axial direction when viewed from a direction perpendicular to the axial direction. 
     
     
       20. The contact terminal according to  claim 2 , wherein the first wall surface portion approaches the central axis toward one side in the axial direction as viewed from a direction perpendicular to the axial direction.